FRP sheets as surface panel at both sides. XPS (also called extrusion board) as core. They are compounded by high pressure and vacuum, guranteeing the strength and stablility.

Application: compartments and external walls of building and truck body. Truck flooring panel, floor panel and wall panel of caravan, heat prreservation box, freezer box, chiller box, dry goods box, large-span structure heat preservation, heat insulation and fire proofing factory, various composite house, refrigerator, container house and so on.